Measuring pump



Jam 27, 1925.

A. JoNcHA MEASURING PUMP Filed 001'.. 19', 1923 4 Sheets-Sheet l .mun l-A. JONCHA uAsuRmG BUMP v v Filed oct. 19, 192s 4 sheets-sheet 2 Jan, 27,1925. 1,524,519

A. JoNcHA MEASURING PUMP Filed oct. 19, 192s 4 sheets-sheet s 'l l e cfg f .,Jan. 27, 1925. v

A. JONCHA 4 Sheets-Sheetl 4 Patented Jan. 27, 1925.

UNITED STATES iftl) PATENT OFFICE.

ANTON JONCI-IA, OF MELROSE PARK, ILLINOISASSIGNOR TO OIL PRODUCTS APPLI-ANCE COMPANY, 0F MAYWOOD, ILLINOIS, A. CORPORATION OF ILLINOIS.

MEASURING PUMP.

Application led October 19, 1923.

To all whom it may concern:

Be it known that I, ANTON JoNoHA, a citizen of the United States,residing at Melrose Park, in the county of Cook and State of Illinois,have invented certain new and usew rful Improvements in Measuring Pumps,of

which the following is a specication.

'I his invention relates to measuring pumps, for delivering apredetermined quantity of liquid at each upward stroke of the pump rod.In carrying out the invention I provide a rack on the pump rod andmechanism associated with the rack for moving it in both directions by acontinuous rotation of the crank handle, this mechanism including aclutch member and means for automatically shifting said member at prdetermined points in the upward travel of the pump rod and at the end ofthe downward stroke of the same. The invention comprises novel mea-nsfor moving the clutch member to cause a reversal of the pump stroke, andnovel means for timing the operation of the clutch-moving means tomovements of the pump rod whereby the upward movement of the rod will bestopped when an exact predetermined amount of liquid has been delivered.T he invention also includes means whereby the quantity of liquiddelivered at each stroke of the pump may be varied, as desired, andmeans for locking the clutch member in neutral position so that the pumpcannot be used by unauthorized persons. The invention also comprisesva.- rious details of construction hereinafter more` particularlydescribed.

In the accompanying drawing which illustrates the invention, v

Fig. v1 is a side elevation of the pump, partly broken away, lookingfrom left to right in Fig. 2, the gear housing and part of the rack barbeing shown in vertical section;

Fig. 2 is a front elevation of the pump, partly broken away;

Fig. 3 is a section on the line 3 3 of Fig. 2;

Fig. 4f is a section on the line 4--4 of Fig. 3,

Fig o is a section on the line 5-5 of Fig. 3

`Fig. G is a section on the line 6-6 of Fig, 2,

Fig. 7 is a 'liront elevation of the lower part of thel gearhousing,-partly in section,

Serial No. 669,561.

showing the locking mechanism for the clutch wheel;

,y Fig. 8 is a section on the line 8-8 0f F g Fig. 9 is a rearperspective view of the rack bar and various operating parts;

Fig. 10 is. a detail view, looking from left to right in Fig. 9,illustrating the action of the parts for shifting the clutch wheel, thecam actuated by the pump being shown in the position where it has justpassed over the center of the spring plunger, during the upward movementof the pump rod; and,

Fig. 1 1 is a similar view showing the posi tions of the part-s afterthe cam and clutchshifting lever have both passed the centers of theplungers which bear against them and the clutch wheel has been shifted.

Referring to Figs. l and 2 of the drawing, a represents the 'base of apump upon which is mounted a column I), and on the upper end of thecolumn is secured a gear casing c. The gear casing is partiallysupported and steadied by the delivery pipe d of the pump, which isclamped within a sleeve 1 on the casing by a set screw 2. The pump rod 3carries a. three-sided rack e which is engaged by a pinion 4t, whichpinion is keyed to a countersha-ft 5, journaled in suitable bearings inthe sides of the casing. The

pinion 4f also meshes with an idle pinion 7, i

mounted upon a stud 8, and the idle pinion meshes` with a pinion 9,mounted to turn upon a crank shaft 10. The c-ountershaft also carries arelatively large gear l1, which is secured to it, and this large gearmeshes with a pinion 12 mounted to turn upon the crank shaft 10, Thehubs of the pinions 9 and 12 are spaced apart and provided with clutchteeth 13, and upon a squared part of the shaft 10, between these hubs,is mounted a clutch wheel y, having teeth 14 on its opposite sides, asshown, for engaging the teeth on the hubs of the pinions 9 and 12.

When the clutch wheel is in engagement with the pinion 12 and the crankshaft is turned by the handle 10"', in the clockwise direction, thepinion 12 will be turned with said shaft and this will drive the gear11. and pinion 4C in the direction to raise the rack and pump rod. Thenthe clutch engages the pinion 9 and the crank shaft is turned in theclockwise direction, the pinion 9 will be turned and will drive the idlegear 7 and pinionl 4 in the direction to lower the Cil llO

raclg 'and pump rod. When the pinion 9 is in engagement with the elutchwheel, the

pinion 12 turns loosely on the crank shaft, and when the pinion 12 isdrivenby the clutch, th'epiinion 9 turns loosely on the crankshaft. Asthe pinion 12 drives the pump rod and rack through the largeintermediate gear 11 while the pinion 9 drives it through a smaller gearor pinion 7, the upward movement of they rack and pump rod jwill besjlowert-han the downward or return movement.

In order ,that the pump may deliver al` nieasuredvquantityot liquid onits upward stroke, I provide means tor automatically shattingthe clutchwiieel from engagement withthe'pinion 12 into engagement with the pinion9,"a-t`ter the pump rod has made a vgiven upward movement; and after theclutch `wheel has been shifted the lcontinued rotation of the cria-nkshaft in the same direction oausesfthe rack and pump rod to desciendtoits lowermost posit-ion. where the clutch wheel is againautomatica]lj;

shifted sothiat the rack and rod will again move upward todeliveranother measured yquantity ot liquid it the hand crank is.

ttirned inthefsame direction as before. l

also provide means for cont-rolling theV clutch Shifting mechanism so asto shorten or lengthen the stroke ot the pump, todeliver.'dieientmeasured quantities ot' liquid Ivvhichextendstransversely in the gear easat the-rear ofthe rack is arranged atap pletileverfgg whichis secured to a sleeve 19,

this sleeve being islidably and totata'bly mounted upon the rod. Thetoi-ward arm 2O 'ofl the tap-pet, lever pro-jects into the space betweenthe opposing sides of the rack and thesleeve may be adjusted to bringsaid arm the path ot movement ot anyone ot the stops 15, 16, or 17. Asshown in Fig. 9, said Yarm is inthe path ot movement of the stop 15.2AFor adjusting the tappet lever. l provide 4a shaft 21 which extendsforwardly throughfthe casing and is provided at its vcn i'ieiarendwithan arm or lever 252i which engages a` pocket '23 on the sleeve. Onthe torward end of the shaft 21, outside roft the casing, is arrangedan, index arm or pointer 211 fwhieh is movable to diferen'tipoints on an.v lexpl-ate 25 arranged on the front ot the vcra-sing. This indexlplate has marks 151 16, 4and 1 7, to indicate dilferentmeasuredquantities of lliquid` whichthe pump will deliver when the index iarm isseit inthe dit'- teient positions. Thus, when the index arm set oppositevthe point a, the tappet lever willbe in line withthe uppermost stop 15`be over the stop 1,6b or 17".

yon .the rack and the tappet lever will hc stop v1 7 will engage androck the tappct lever to cause a reversal ot the pump rod. li the indexarm is moved to a point oppos'te the mark 16a, the tappet lever will heslii'tted into the path of movement of the stop 16, which intermediatethe stops 15 and 17 and it will rock the tappet lever atter the pump rodhas made an upward movement intermediate the movements row trollcd bythe stops 15 and 17.

The rear arm 20 ot the tappet lever projects over the rear arm26 of atrippingA lever /i which is Centrally mounted to roclc on a rod or bar27, which extends trans' versely of the gear casing below the bar 1S.llpon this tripping lever are three veitically adjustable stops. 15",16". and 17". arranged so that when the forward end of the tappe'. leveris in the path of movement of the stop 15 on the rack, its rear end willextend over the stop 15b; and similarly when the forward end ot thetappet lever is arranged in the piafth olmovement of the stop 1 6. oro?the stop 17 ythe rear end of said lever will` These adjust` able stopsare provided in order that thi` trip-ping lever may perform its functionot causing the clutch gear to shift at an exact point in the upwardmovement of the pump rod, when the proper quantity of liquid has beendelivered. An adjustable stop QS ii arranged beneath the rear end ot thetripA ping lever for limiting.r the rocking moveA ment ot the latter.

The forward arm 26 of the tripping lever extends beneath an arm 29 whichprojects laterally from a heart-shaped cam j. which has an oscillatingmovement upon a shaft il() which extends forwardly through the casingandis provided on its outer end with a suitable handle 31. The camr 7'is integral with a sleeve 3Q which is journalcd on said shaft and thissleeve has at one end a lui'` 3J which interlocks with a similar lug$13" on a sleeve i, which is secured to th(` shaft b v a pin 34,. Thelugs 39. and 33 are less lthan 180 in length so as to provide a lost`inot1on connection between the sleeve 3Q and 3?) and therefore alsobetween the slecvfi and the shaft 30 on which the sleeve 3? is secured.The sleeve 212-1 carries a clutchshitting arm In which extends into thespace between flanges 35. on the clutch wheel. An ott-center devicd o isprovided for prrventing the clutch shifting arm from occupy# ing aneutral position and for causing said arm to hold the clutch wheel inengagement with the teeth on one or the other of the pinions 9 or l2.This device comprises a plunger 36, having a wedge-shaped end andimpelled by a spring 37 against the clutch shifting arm, which has acentral radial ridge 3S between two oppositely sloping cam faces 39which are adapted to be engaged by the wedge-shaped end of the plunger.Beneath the heart-shaped cam is arranged an olf-center device p, similarto the device o but having a spring 4:0 which is much stronger tha-n thespring 3T. This latter off-center device comprises the spring 4,0 andthe plunger il which is pressed upwardly by said spring against the cam'7'. The end of the plunger 4:1 is wedge-shaped, as shown.

Then the pump rod and rack are moving upward and before any of the stopson the rack bar have engaged the tappet lever, the parts are in theposition shown in Fig. 9, with the clutch wheel engaging the pinion 12,indicated in dotted lines in said figure. lhen the stop on the rack bar,which is in line with the tappet lever, engages and rocks the latter,said lever causes the tripping lever to rock and the latter in turnmoves the arm 29 of the heart-shaped cam upward and the cam causes theplunger 4l of the device p to be depressed and the pointed end of thecam passes over the end of the plunger, as shown in Fig. 10. During thismovement of the cam, which is relatively slow, the clutch wheel f is notmoved owing to the lost 1notion connection between the sleeve of the camand the sleeve of the gear sl'iiftii'ig lever and to the fact that theolf-center device presses the clutch shifting lever in the direction tohold the clutch wheel in eugagement with the pinion l2. After the pointof the cam has passed beyond the center of the plunger al a suiiicientdistano to take up the lost motion between the cam sleeve and the sleeveof the clutch shifting lever, as shown in Fig. 10, the pressure` of thespringe() against the plunger 4l causes the latter to rock the cam andthe latter turns the clutch arm 1, causing the clutch wheel to bequickly disengaged 'from the pinion l2 and moved into engagement withthe pinion 9. As the clutch-shifting lever passes its central position,the cam surface at one side of the radial ridge 38 on said lever pressesthe plunger 36 backward against thetension of the spring` 3.7, and theplunger then springs outward and bears against the cam surface on theopposite side of the radial ridge to hold the clutch in engagement withthe pinion 9 while the cam j is being moved to shift the clutch in thereverse direction at the end of the downward stroke of the pump rod.Vhen the clutch wheel is shifted from the pinion i2 to the pinion 9, theupward movement of the rack and pump rod ceases, and if the movement ofthe crank shaft is continued the pump rod and rack will be drivendownward. At the lower end of the. stroke of the pump, an adjustablestop 42 on the side of the pump rack, near its upper end, bears upon thearm 29 of the cam j (which is then in the raised position shown in Fig.ll), and this causes the cam to rock in the reverse direction. In thisrocking movement it depresses the plunger 4l and rides over the pointedend of the plunger, after which the plunger springs upwardly` causingthel cam to continue its movement and actuate the clutch lever in thedirection to shift the clutch pinion into engagement with the pinion l2,and the olf-center device o is pressed backward by the clutch shift# inglever and then springs forward to press said lever in the direction tohold the clutch wheel in engagement with the pinion l2.

By adjusting the adustable stops b, 16", 17h, upward or downward, thetime in the stroke of the pump at which the cam will be carried over thecenter of the plunger 4l, to reverse the gearing, may be accuratelydetermined. By properly setting the adjust able stops, the exactmeasurement of liquid H' may be delivered by the pump to correspond withthe quantities indicated by the several points or marks on the indexplate.

ln filling tanks from the pumps, it happens frequently that the tankwill be completely filled before the pump has finished its upwardstroke. For that reason it :is dcsirable to have means for reversing thegear ing at any point in the stroke of the pump. This may beaccomplished by turning the shaft by means of the handle 3l so as to`cause the clutch lever to move the clutch wheel out of engagement withthe pinion 12 and into enga-gement with the pinion 9.

ly thus turning the shaft 30, the cam j willv le thrown past the end ot'the plunger 41 and the plunger, as before described, will springupwardly on the opposite side of the cam and the clutch wheel will thenbe held in engagement with the pinion 9 by the olfcenter device o. Theoperation of the hand crank in the clockwise direction will then carrythe rack and pump rod to its lowest position, when the stop 42 willengage the arm 29 on the cam and cause the shifting of the clutch wheelas before described.

Then the pump is not in active use, it is desirable to lock it se thatit cannot bev operated by unauthorized persons. For this purpose, lprovide a device for centering the clutch wheel between the pinions 9and 1Q and means for locking this device. The centering device comprisesa shaft 43 which extends through the front of the casing and is providedwith a handle 44, and on the lll() inner-end of this shaft is arranged afiat -head 45, which lies within the space between the flanges. 35 ofthe clutch wheel and is adapted to extend practically from one flange tothe other, as shown in Fig. 8, when the handle Mis in one position. Whenthe handle is turned 90 from the position shown :in Fig. 8, the headwill lie parallel with the flanges, as shown in Fig. 3, and midwaybetween them so as to permit the wheel to be shifted. To lock the clutchwheel, the head isturned by means of the handle to the position shown inFig. 8,'and in this position the clutch wheel cannot be moved intoengagement with either of the adjacent pinions. The shaft 43 may belocked with the head in this last mentioned position by means of thekey-controlled lock 46, having a bolt 47, adapted to engage a recess ina lug 48, which is secured to the shaft 43.

' member, of means for shifting said member comprising a stop movablewith the rack, a tappet lever adapted to be rocked by said stop duringthe upward movement of the rack, a tripping lever mounted independentlyof the tappet lever and adapted to be Yengaged and rockedrby the tappetlever, a

spring actuated off-center device movable by the trippinglever, and anarm movable by said device and engaging the clutch member.

2. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaftr and ,reversible gearing connecting the driveshaft with the rack including a clutch member, of means for shift-ingsaid member i comprising a stop movable with the rack, a

tappet lever adapted to be rocked by said stop :during the upwardmovement of the vrack,ja trip-ping -lever mounted independently of thetappet lever and adapted to be engaged and rocked b v` the tappet lever,

.means for varying the extent of movement of the tripping lever, aspring actuated offcenter device movable by the tripping lever,

and an arm movable by said device and engaging the clutch member.

`8. -Iin a measuring pump, the combination withthe pump rod, a rackthereon, a drive vshaft and reversible gearing connecting the Vdriveshaft with the rack including a clutch 'memben of' means for shiftingsaid member comprising a stop-inovable with the rack, a .tappet/leveradapted to be rocked by said stop rduring the upward movement of therack, "a tripping lever mounted independent-ly of the tappet lever andadapted to be `-:rocked by the tappet lever,-an.adjustable stop on thetripping lever adapted to be engaged by the tappet lever, a springactuated off-center device movable by the tripping lever, and an armmovable b v said device and engaging the clutch member.

el. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member, a plurality of stops movablewith the rack, a tappet lever. manually operable means for setting thetappet lever in the path of movement of any one of said stops. atripping lever adapted to be rocked by the tappet lever. and meanscontrolled by the movement of the tripping lever for lshifting theclutch member.

In a measuring pump, the combination with the pump rod, a rack thereon.a drive shaft and reversible gearing connecting the drive shaft with therack including a clutch member, of me'ans for shifting said membercomprising a plurality of stops movable with the rack, a tappet lever.manually operable means for setting the tappet lever in the path ofmovement of any one of said stops, a tripping lever having a pluralityof adjustable stops adapted to be separately engaged by the tappet leverin its different set positions, and means controlled by the trippinglever for shifting the clutch member.

6. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member, of means for shifting saidmember comprising a stop movable with the rack. a tappet lever 'adaptedto be rocked by said stop during the upward movement of the rack, atripping lever adapted to be rocked by the tappet lever. a springactuated oilcenter device movable by the tripping lever. and an armhaving a lost-motion connection with said device and movable by saiddevice. said arm engaging the clutch member.

7. In a measuring pump, the combination with the pump rod, a rackthereon. a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member, of means for shifting saidmember comprising a stop mo vable with the rack, a tappet lever adaptedto be rocked by said stop during the upward movement of the rack, atripping lever adapted to be rocked by the tappet lever. a springactuated olf-center device movable by the tripping lever. an arm havinga lost-motion connection with said device and movable by said device,said arm engaging the clutch member, and a spring-actuated off-centerdevice engaging said arm.

8. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaft and reversible `gearing connecting the driveshaft with the rack including a clutch member', of means for shiftingsaid member comprising a stop movable with the rack, a tappet leveradapted to be rocked by said Stop during the upward movement of therack, a manually operable shaft, an arm secured thereon for moving theclutch member, a spring-actuated olf-center device for moving saidlatter shaft comprising a part having a lost-motion connection with theSame, Vand means operated by the tappet lever for moving said partagainst the action of its spring.

9. In a measuring pump, the combin'ation with the pump rod, a rackthereon, a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member, of means for shifting saidmember comprising 'a stop movable with the rack, a tappet lever adaptedto be rocked by said stop during the upward movement of the rack, amanually operable shaft, 'an arm secured thereon for moving the clutchmemher, a spring-actuated off-center device for moving said latter shaftcomprising a part having a lost-motion connection with the same, and atripping lever interposed between said tappet lever and said part formoving said part against the action of its spring.

l0. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member, of means for shifting saidmember comprising a stop movable with the rack, a tappet lever adaptedto be rocked by said stop during the upward movement of the rack, amanually operable shaft, an arm thereon engaging the clutch member, aheart cam on the latter shaft and having a lostmotion connectiontherewith, a springpressed plungerI engaging the cam, and means movableby the tappet lever for rocking said cam.

ll. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member', of means for shifting saidmember comprising a stop movable with the rack, a tappet lever adaptedto be rocked by said stop during the upward movement of the rack, amanually operable shaft, an arm thereon engaging the clutch member, aheart cam on the latter sh'aft and having a lost-motion connectiontherewith, said cam having a laterally projecting arm, a tripping levermovable by the tappet lever and having an 'arm adapted to engage the armon the cam to rock the latter when the rack moves upwardly.

l2. In a measuring pump, the combination with the pump rod, a r'ackthereon, a drive shaft and reversible gearing connecting the drive shaftwith the rack including a clutch member, of means for shifting saidmember comprising a stop movable with the rack, a tappet lever adaptedto be rocked by said stop during the upward movement of the rack, amanually operable shaft, an arm thereon engaging the clutch member, 'aheart cam on the latter shaft and having a lost-motion connectiontherewith, a tripping lever movable by the tappet lever and adapted torock the cam in one direction when the rack moves upwardly, and a stop,movable with the rack, adapted to rock said cam in the oppositedirection at the end of the lowering movement of the rack.

18. In a measuring pump, the combination with the pump rod, a rackthereon, a drive sh'aft and reversible gearing connecting the drive.shaft with the rack and including a clutch wheel slidably mounted on theshaft and having spaced iianges, of means for locking said wheel inneutral position comprising 'a part adapted to engage said flanges.

14. In a measuring pump, the combination with the pump rod, a rackthereon, a drive shaft and reversible gearing connecting` the driveshaft with the rack and including a clutch wheel slidably mounted on theshaft and having spaced anges, of means for locking said wheel inneutral position comprising 'a :rotatably mounted shaft having a flathead ext-ending into the space between said flanges and a lock forlocking said shaft 'against rotation.

In testimony whereof I hereunto affix my signature.

` ANTON JONCHA.

